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Erschienen in: Brain Structure and Function 9/2017

05.06.2017 | Original Article

The role of the putamen in language: a meta-analytic connectivity modeling study

verfasst von: Nestor Viñas-Guasch, Yan Jing Wu

Erschienen in: Brain Structure and Function | Ausgabe 9/2017

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Abstract

The putamen is a subcortical structure that forms part of the dorsal striatum of basal ganglia, and has traditionally been associated with reinforcement learning and motor control, including speech articulation. However, recent studies have shown involvement of the left putamen in other language functions such as bilingual language processing (Abutalebi et al. 2012) and production, with some authors arguing for functional segregation of anterior and posterior putamen (Oberhuber et al. 2013). A further step in exploring the role of putamen in language would involve identifying the network of coactivations of not only the left, but also the right putamen, given the involvement of right hemisphere in high order language functions (Vigneau et al. 2011). Here, a meta-analytic connectivity modeling technique was used to determine the patterns of coactivation of anterior and bilateral putamen in the language domain. Based on previous evidence, we hypothesized that left putamen coactivations would include brain regions directly associated with language processing, whereas right putamen coactivations would encompass regions involved in broader semantic processes, such as memory and visual imagery. The results showed that left anterior putamen coactivated with clusters predominantly in left hemisphere, encompassing regions directly associated with language processing, a left posterior putamen network spanning both hemispheres, and cerebellum. In right hemisphere, coactivations were in both hemispheres, in regions associated with visual and orthographic processing. These results confirm the differential involvement of right and left putamen in different language components, thus highlighting the need for further research into the role of putamen in language.
Literatur
Zurück zum Zitat Abutalebi J, Della Rosa PA, Green DW, Hernandez M, Scifo P, Keim R, Costa A (2012) Bilingualism tunes the anterior cingulate cortex for conflict monitoring. Cereb Cortex (New York, N.Y.: 1991) 22(9):2076–2086. doi:10.1093/cercor/bhr287 Abutalebi J, Della Rosa PA, Green DW, Hernandez M, Scifo P, Keim R, Costa A (2012) Bilingualism tunes the anterior cingulate cortex for conflict monitoring. Cereb Cortex (New York, N.Y.: 1991) 22(9):2076–2086. doi:10.​1093/​cercor/​bhr287
Zurück zum Zitat Alexander GE, DeLong MR, Strick PL (1986) Parallel organization of functionally segregated circuits linking basal ganglia and cortex. Annu Rev Neurosci 9:357–381PubMedCrossRef Alexander GE, DeLong MR, Strick PL (1986) Parallel organization of functionally segregated circuits linking basal ganglia and cortex. Annu Rev Neurosci 9:357–381PubMedCrossRef
Zurück zum Zitat Ardila A, Bernal B, Rosselli M (2016b) How localized are language brain areas? A review of brodmann areas involvement in oral language. Arch Clin Neuropsychol Off J Natl Acad Neuropsychol 31(1):112–122. doi:10.1093/arclin/acv081 CrossRef Ardila A, Bernal B, Rosselli M (2016b) How localized are language brain areas? A review of brodmann areas involvement in oral language. Arch Clin Neuropsychol Off J Natl Acad Neuropsychol 31(1):112–122. doi:10.​1093/​arclin/​acv081 CrossRef
Zurück zum Zitat Bak TH, O’Donovan DG, Xuereb JH, Boniface S, Hodges JR (2001) Selective impairment of verb processing associated with pathological changes in Brodmann areas 44 and 45 in the motor neurone disease–dementia–aphasia syndrome. Brain 124(1):103–120. doi:10.1093/brain/124.1.103 PubMedCrossRef Bak TH, O’Donovan DG, Xuereb JH, Boniface S, Hodges JR (2001) Selective impairment of verb processing associated with pathological changes in Brodmann areas 44 and 45 in the motor neurone disease–dementia–aphasia syndrome. Brain 124(1):103–120. doi:10.​1093/​brain/​124.​1.​103 PubMedCrossRef
Zurück zum Zitat Bruck A, Aalto S, Nurmi E, Vahlberg T, Bergman J, Rinne JO (2006) Striatal subregional 6-[18F]fluoro-L-dopa uptake in early Parkinson’s disease: a two-year follow-up study. Mov Disord 21:958–963PubMedCrossRef Bruck A, Aalto S, Nurmi E, Vahlberg T, Bergman J, Rinne JO (2006) Striatal subregional 6-[18F]fluoro-L-dopa uptake in early Parkinson’s disease: a two-year follow-up study. Mov Disord 21:958–963PubMedCrossRef
Zurück zum Zitat Buckner RL, Raichle ME, Petersen SE (1995) Dissociation of human prefrontal cortical areas across different speech production tasks and gender groups. J Neurophysiol 74(5):2163–2173PubMed Buckner RL, Raichle ME, Petersen SE (1995) Dissociation of human prefrontal cortical areas across different speech production tasks and gender groups. J Neurophysiol 74(5):2163–2173PubMed
Zurück zum Zitat Cohen L, Dehaene S, Naccache L, Lehéricy S, Dehaene-Lambertz G, Hénaff MA, Michel F (2000) The visual word form area: spatial and temporal characterization of an initial stage of reading in normal subjects and posterior split-brain patients. Brain J Neurol 123(Pt 2):291–307CrossRef Cohen L, Dehaene S, Naccache L, Lehéricy S, Dehaene-Lambertz G, Hénaff MA, Michel F (2000) The visual word form area: spatial and temporal characterization of an initial stage of reading in normal subjects and posterior split-brain patients. Brain J Neurol 123(Pt 2):291–307CrossRef
Zurück zum Zitat Crosson BA (1992) Subcortical functions in language and memory. Guilford Press, New York Crosson BA (1992) Subcortical functions in language and memory. Guilford Press, New York
Zurück zum Zitat Croxson PL, Johansen-Berg H, Behrens TEJ, Robson MD, Pinsk MA, Gross CG, Rushworth MFS (2005) Quantitative investigation of connections of the prefrontal cortex in the human and macaque using probabilistic diffusion tractography. J Neurosci 25(39):8854–8866. doi:10.1523/JNEUROSCI.1311-05.2005 PubMedCrossRef Croxson PL, Johansen-Berg H, Behrens TEJ, Robson MD, Pinsk MA, Gross CG, Rushworth MFS (2005) Quantitative investigation of connections of the prefrontal cortex in the human and macaque using probabilistic diffusion tractography. J Neurosci 25(39):8854–8866. doi:10.​1523/​JNEUROSCI.​1311-05.​2005 PubMedCrossRef
Zurück zum Zitat Dapretto M, Bookheimer SY (1999) Form and content: dissociating syntax and semantics in sentence comprehension. Neuron 24(2):427–432PubMedCrossRef Dapretto M, Bookheimer SY (1999) Form and content: dissociating syntax and semantics in sentence comprehension. Neuron 24(2):427–432PubMedCrossRef
Zurück zum Zitat Devlin JT, Raley J, Tunbridge E, Lanary K, Floyer-Lea A, Narain C, Moore DR (2003) Functional asymmetry for auditory processing in human primary auditory cortex. J Neurosci Off J Soc Neurosci 23(37):11516–11522 Devlin JT, Raley J, Tunbridge E, Lanary K, Floyer-Lea A, Narain C, Moore DR (2003) Functional asymmetry for auditory processing in human primary auditory cortex. J Neurosci Off J Soc Neurosci 23(37):11516–11522
Zurück zum Zitat du Boisgueheneuc F, Levy R, Volle E, Seassau M, Duffau H, Kinkingnehun S, Dubois B (2006) Functions of the left superior frontal gyrus in humans: a lesion study. Brain 129(12):3315–3328. doi:10.1093/brain/awl244 PubMedCrossRef du Boisgueheneuc F, Levy R, Volle E, Seassau M, Duffau H, Kinkingnehun S, Dubois B (2006) Functions of the left superior frontal gyrus in humans: a lesion study. Brain 129(12):3315–3328. doi:10.​1093/​brain/​awl244 PubMedCrossRef
Zurück zum Zitat Eickhoff SB, Laird AR, Grefkes C, Wang LE, Zilles K, Fox PT (2009) Coordinate-based activation likelihood estimation meta-analysis of neuroimaging data: a random-effects approach based on empirical estimates of spatial uncertainty. Hum Brain Mapp 30(9):2907–2926. doi:10.1002/hbm.20718 PubMedPubMedCentralCrossRef Eickhoff SB, Laird AR, Grefkes C, Wang LE, Zilles K, Fox PT (2009) Coordinate-based activation likelihood estimation meta-analysis of neuroimaging data: a random-effects approach based on empirical estimates of spatial uncertainty. Hum Brain Mapp 30(9):2907–2926. doi:10.​1002/​hbm.​20718 PubMedPubMedCentralCrossRef
Zurück zum Zitat Ferré P, Ska B, Lajoie C, Bleau A, Joanette Y (2011) Clinical focus on prosodic, discursive and pragmatic treatment for right hemisphere damaged adults: what’s right? Rehabil Res Pract 2011:1–10 Ferré P, Ska B, Lajoie C, Bleau A, Joanette Y (2011) Clinical focus on prosodic, discursive and pragmatic treatment for right hemisphere damaged adults: what’s right? Rehabil Res Pract 2011:1–10
Zurück zum Zitat Fox PT, Laird AR, Fox SP, Fox PM, Uecker AM, Crank M, Lancaster JL (2005) BrainMap taxonomy of experimental design: description and evaluation. Hum Brain Mapp 25(1):185–198. doi:10.1002/hbm.20141 PubMedCrossRef Fox PT, Laird AR, Fox SP, Fox PM, Uecker AM, Crank M, Lancaster JL (2005) BrainMap taxonomy of experimental design: description and evaluation. Hum Brain Mapp 25(1):185–198. doi:10.​1002/​hbm.​20141 PubMedCrossRef
Zurück zum Zitat Friederici AD, Meyer M, von Cramon DY (2000) Auditory language comprehension: an event-related fMRI study on the processing of syntactic and lexical information. Brain Lang 75(3):289–300PubMedCrossRef Friederici AD, Meyer M, von Cramon DY (2000) Auditory language comprehension: an event-related fMRI study on the processing of syntactic and lexical information. Brain Lang 75(3):289–300PubMedCrossRef
Zurück zum Zitat Grande M, Meffert E, Schoenberger E, Jung S, Frauenrath T, Huber W, Heim S (2012) From a concept to a word in a syntactically complete sentence: an fMRI study on spontaneous language production in an overt picture description task. ResearchGate 61(3):702–714. doi:10.1016/j.neuroimage.2012.03.087 Grande M, Meffert E, Schoenberger E, Jung S, Frauenrath T, Huber W, Heim S (2012) From a concept to a word in a syntactically complete sentence: an fMRI study on spontaneous language production in an overt picture description task. ResearchGate 61(3):702–714. doi:10.​1016/​j.​neuroimage.​2012.​03.​087
Zurück zum Zitat Kish SJ, Shannak K, Hornykiewicz O (1988) Uneven pattern of dopamine loss in the striatum of patients with idiopathic Parkinson’s disease. Pathophysiologic and clinical implications. N Engl J Med 318:876–880PubMedCrossRef Kish SJ, Shannak K, Hornykiewicz O (1988) Uneven pattern of dopamine loss in the striatum of patients with idiopathic Parkinson’s disease. Pathophysiologic and clinical implications. N Engl J Med 318:876–880PubMedCrossRef
Zurück zum Zitat Krieg SM, Sollmann N, Tanigawa N, Foerschler A, Meyer B, Ringel F (2016) Cortical distribution of speech and language errors investigated by visual object naming and navigated transcranial magnetic stimulation. Brain Struct Funct 221(4):2259–2286. doi:10.1007/s00429-015-1042-7 PubMedCrossRef Krieg SM, Sollmann N, Tanigawa N, Foerschler A, Meyer B, Ringel F (2016) Cortical distribution of speech and language errors investigated by visual object naming and navigated transcranial magnetic stimulation. Brain Struct Funct 221(4):2259–2286. doi:10.​1007/​s00429-015-1042-7 PubMedCrossRef
Zurück zum Zitat Laird AR, Lancaster JL, Fox PT (2005) BrainMap: the social evolution of a human brain mapping database. Neuroinformatics 3(1):65–78PubMedCrossRef Laird AR, Lancaster JL, Fox PT (2005) BrainMap: the social evolution of a human brain mapping database. Neuroinformatics 3(1):65–78PubMedCrossRef
Zurück zum Zitat Lehéricy S, Ducros M, Krainik A, Francois C, Van de Moortele P-F, Ugurbil K, Kim D-S (2004) 3-D diffusion tensor axonal tracking shows distinct SMA and pre-SMA projections to the human striatum. Cereb Cortex (New York, N.Y.: 1991) 14(12):1302–1309. doi:10.1093/cercor/bhh091 Lehéricy S, Ducros M, Krainik A, Francois C, Van de Moortele P-F, Ugurbil K, Kim D-S (2004) 3-D diffusion tensor axonal tracking shows distinct SMA and pre-SMA projections to the human striatum. Cereb Cortex (New York, N.Y.: 1991) 14(12):1302–1309. doi:10.​1093/​cercor/​bhh091
Zurück zum Zitat Levy J, Pernet C, Treserras S, Boulanouar K, Aubry F, Démonet J-F, Celsis P (2009) Testing for the dual-route cascade reading model in the brain: an fMRI effective connectivity account of an efficient reading style. PLoS One. doi:10.1371/journal.pone.0006675 Levy J, Pernet C, Treserras S, Boulanouar K, Aubry F, Démonet J-F, Celsis P (2009) Testing for the dual-route cascade reading model in the brain: an fMRI effective connectivity account of an efficient reading style. PLoS One. doi:10.​1371/​journal.​pone.​0006675
Zurück zum Zitat Manes JL, Parkinson AL, Larson CR, Greenlee JD, Eickhoff SB, Corcos DM, Robin DA (2014) Connectivity of the subthalamic nucleus and globus pallidus pars interna to regions within the speech network. Hum Brain Mapp 35(7):3499–3516. doi:10.1002/hbm.22417 PubMedCrossRef Manes JL, Parkinson AL, Larson CR, Greenlee JD, Eickhoff SB, Corcos DM, Robin DA (2014) Connectivity of the subthalamic nucleus and globus pallidus pars interna to regions within the speech network. Hum Brain Mapp 35(7):3499–3516. doi:10.​1002/​hbm.​22417 PubMedCrossRef
Zurück zum Zitat Matteau I, Kupers R, Ricciardi E, Pietrini P, Ptito M (2010) Beyond visual, aural and haptic movement perception: hMT+ is activated by electrotactile motion stimulation of the tongue in sighted and in congenitally blind individuals. Brain Res Bull 82(5–6):264–270. doi:10.1016/j.brainresbull.2010.05.001 PubMedCrossRef Matteau I, Kupers R, Ricciardi E, Pietrini P, Ptito M (2010) Beyond visual, aural and haptic movement perception: hMT+ is activated by electrotactile motion stimulation of the tongue in sighted and in congenitally blind individuals. Brain Res Bull 82(5–6):264–270. doi:10.​1016/​j.​brainresbull.​2010.​05.​001 PubMedCrossRef
Zurück zum Zitat Nakano K, Kayahara T, Tsutsumi T, Ushiro H (2000) Neural circuits and functional organization of the striatum. J Neurol 247 Suppl 5:V1–15 Nakano K, Kayahara T, Tsutsumi T, Ushiro H (2000) Neural circuits and functional organization of the striatum. J Neurol 247 Suppl 5:V1–15
Zurück zum Zitat Nurmi E, Ruottinen HM, Bergman J, Haaparanta M, Solin O, Sonninen P, Rinne JO (2001) Rate of progression in Parkinson’s disease: a 6-[18F]fluoro-L-dopa PET study. Mov Disord 16:608–615PubMedCrossRef Nurmi E, Ruottinen HM, Bergman J, Haaparanta M, Solin O, Sonninen P, Rinne JO (2001) Rate of progression in Parkinson’s disease: a 6-[18F]fluoro-L-dopa PET study. Mov Disord 16:608–615PubMedCrossRef
Zurück zum Zitat Parent A, Hazrati LN (1995) Functional anatomy of the basal ganglia. I. The cortico-basal ganglia-thalamo-cortical loop. Brain Res Brain Res Rev 20(1):91–127 PubMedCrossRef Parent A, Hazrati LN (1995) Functional anatomy of the basal ganglia. I. The cortico-basal ganglia-thalamo-cortical loop. Brain Res Brain Res Rev 20(1):91–127 PubMedCrossRef
Zurück zum Zitat Petersen SE, Fox PT, Posner MI, Mintun M, Raichle ME (1989) Positron emission tomographic studies of the processing of single words. J Cogn Neurosci 1(2):153–170PubMedCrossRef Petersen SE, Fox PT, Posner MI, Mintun M, Raichle ME (1989) Positron emission tomographic studies of the processing of single words. J Cogn Neurosci 1(2):153–170PubMedCrossRef
Zurück zum Zitat Postuma RB, Dagher A (2006) Basal ganglia functional connectivity based on a meta-analysis of 126 positron emission tomography and functional magnetic resonance imaging publications. Cereb Cortex (New York, N.Y.: 1991) 16(10):1508–1521. doi:10.1093/cercor/bhj088 Postuma RB, Dagher A (2006) Basal ganglia functional connectivity based on a meta-analysis of 126 positron emission tomography and functional magnetic resonance imaging publications. Cereb Cortex (New York, N.Y.: 1991) 16(10):1508–1521. doi:10.​1093/​cercor/​bhj088
Zurück zum Zitat Raichle ME, Fiez JA, Videen TO, MacLeod AM, Pardo JV, Fox PT, Petersen SE (1994) Practice-related changes in human brain functional anatomy during nonmotor learning. Cereb Cortex (New York, N.Y.: 1991) 4(1):8–26 Raichle ME, Fiez JA, Videen TO, MacLeod AM, Pardo JV, Fox PT, Petersen SE (1994) Practice-related changes in human brain functional anatomy during nonmotor learning. Cereb Cortex (New York, N.Y.: 1991) 4(1):8–26
Zurück zum Zitat Robles SG, Gatignol P, Capelle L, Mitchell M-C, Duffau H (2005) The role of dominant striatum in language: a study using intraoperative electrical stimulations. J Neurol Neurosurg Psychiatry 76(7):940–946. doi:10.1136/jnnp.2004.045948 CrossRef Robles SG, Gatignol P, Capelle L, Mitchell M-C, Duffau H (2005) The role of dominant striatum in language: a study using intraoperative electrical stimulations. J Neurol Neurosurg Psychiatry 76(7):940–946. doi:10.​1136/​jnnp.​2004.​045948 CrossRef
Zurück zum Zitat Seghier ML (2013) The angular gyrus: multiple functions and multiple subdivisions. Neurosci Rev J Bringing Neurobiol Neurol Psychiatry 19(1):43–61. doi:10.1177/1073858412440596 Seghier ML (2013) The angular gyrus: multiple functions and multiple subdivisions. Neurosci Rev J Bringing Neurobiol Neurol Psychiatry 19(1):43–61. doi:10.​1177/​1073858412440596​
Zurück zum Zitat Selemon LD, Goldman-Rakic PS (1985) Longitudinal topography and interdigitation of corticostriatal projections in the rhesus monkey. J Neurosci 5(3):776–794PubMed Selemon LD, Goldman-Rakic PS (1985) Longitudinal topography and interdigitation of corticostriatal projections in the rhesus monkey. J Neurosci 5(3):776–794PubMed
Zurück zum Zitat Senior C, Russell T, Gazzaniga MS (eds) (2009) Methods in mind. The MIT Press, London, Cambridge Senior C, Russell T, Gazzaniga MS (eds) (2009) Methods in mind. The MIT Press, London, Cambridge
Zurück zum Zitat Shallice T, Fletcher P, Frith CD, Grasby P, Frackowiak RS, Dolan RJ (1994) Brain regions associated with acquisition and retrieval of verbal episodic memory. Nature 368(6472):633–635. doi:10.1038/368633a0 PubMedCrossRef Shallice T, Fletcher P, Frith CD, Grasby P, Frackowiak RS, Dolan RJ (1994) Brain regions associated with acquisition and retrieval of verbal episodic memory. Nature 368(6472):633–635. doi:10.​1038/​368633a0 PubMedCrossRef
Zurück zum Zitat Tulving E, Kapur S, Markowitsch HJ, Craik FI, Habib R, Houle S (1994) Neuroanatomical correlates of retrieval in episodic memory: auditory sentence recognition. Proc Natl Acad Sci 91(6):2012–2015PubMedPubMedCentralCrossRef Tulving E, Kapur S, Markowitsch HJ, Craik FI, Habib R, Houle S (1994) Neuroanatomical correlates of retrieval in episodic memory: auditory sentence recognition. Proc Natl Acad Sci 91(6):2012–2015PubMedPubMedCentralCrossRef
Zurück zum Zitat Turkeltaub PE, Eden GF, Jones KM, Zeffiro TA (2002) Meta-analysis of the functional neuroanatomy of single-word reading: method and validation. NeuroImage 16(3 Pt 1):765–780PubMedCrossRef Turkeltaub PE, Eden GF, Jones KM, Zeffiro TA (2002) Meta-analysis of the functional neuroanatomy of single-word reading: method and validation. NeuroImage 16(3 Pt 1):765–780PubMedCrossRef
Zurück zum Zitat Turkeltaub PE, Eickhoff SB, Laird AR, Fox M, Wiener M, Fox P (2012) Minimizing within-experiment and within-group effects in activation likelihood estimation meta-analyses. Hum Brain Mapp 33(1):1–13. doi:10.1002/hbm.21186 PubMedCrossRef Turkeltaub PE, Eickhoff SB, Laird AR, Fox M, Wiener M, Fox P (2012) Minimizing within-experiment and within-group effects in activation likelihood estimation meta-analyses. Hum Brain Mapp 33(1):1–13. doi:10.​1002/​hbm.​21186 PubMedCrossRef
Zurück zum Zitat Wager TD, Smith EE (2003) Neuroimaging studies of working memory: a meta-analysis. Cogn Affect Behav Neurosci 3(4):255–274PubMedCrossRef Wager TD, Smith EE (2003) Neuroimaging studies of working memory: a meta-analysis. Cogn Affect Behav Neurosci 3(4):255–274PubMedCrossRef
Zurück zum Zitat Wong D, Pisoni DB, Learn J, Gandour JT, Miyamoto RT, Hutchins GD (2002) PET imaging of differential cortical activation by monaural speech and nonspeech stimuli. Hear Res 166(1–2):9–23PubMedPubMedCentralCrossRef Wong D, Pisoni DB, Learn J, Gandour JT, Miyamoto RT, Hutchins GD (2002) PET imaging of differential cortical activation by monaural speech and nonspeech stimuli. Hear Res 166(1–2):9–23PubMedPubMedCentralCrossRef
Zurück zum Zitat Zald DH, McHugo M, Ray KL, Glahn DC, Eickhoff SB, Laird AR (2014) Meta-analytic connectivity modeling reveals differential functional connectivity of the medial and lateral orbitofrontal cortex. Cereb Cortex 24(1):232–248. doi:10.1093/cercor/bhs308 PubMedCrossRef Zald DH, McHugo M, Ray KL, Glahn DC, Eickhoff SB, Laird AR (2014) Meta-analytic connectivity modeling reveals differential functional connectivity of the medial and lateral orbitofrontal cortex. Cereb Cortex 24(1):232–248. doi:10.​1093/​cercor/​bhs308 PubMedCrossRef
Metadaten
Titel
The role of the putamen in language: a meta-analytic connectivity modeling study
verfasst von
Nestor Viñas-Guasch
Yan Jing Wu
Publikationsdatum
05.06.2017
Verlag
Springer Berlin Heidelberg
Erschienen in
Brain Structure and Function / Ausgabe 9/2017
Print ISSN: 1863-2653
Elektronische ISSN: 1863-2661
DOI
https://doi.org/10.1007/s00429-017-1450-y

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